Glove-like fit for bulldog couplers ensures secure and easy installation
Patented Cobra tubular keyway system offers high security and prevents key duplication
Compatible with most size safety chains for versatile trailer use
Available with Medeco or Abloy options for enhanced security and durability
Manual lock operation for reliable, tamper-resistant performance
Summarized by Shop
Description
Model 2517-B1 was designed to fit the BullDog style trailer. This style trailer coupler is usually found on enclosed and equipment trailers. In most cases, Bulldog style couplers will be found on commercial trailers, but in some cases trailer manufacturers offer Bulldog couplers on non-commercial trailers as an upgrade.
This
I’ve put my lock on my trailer and it feels very secure to me
B
Brian · 13 days ago
Seems solid
Haven’t tried to install yet but it looks solid.
M
Mitchell · June 29, 2026
Great Product
Recently got this lock. Had always just had a padlock on the latch, after buying a new trailer, decided to update the security. Solidly built, and really like the ability to store the ends of the safety chains as well.